typelevel/cats

Lightweight, modular, and extensible library for functional programming.

circe/circe

Yet another JSON library for Scala

japgolly/scalajs-react

Facebook's React on Scala.JS

typelevel/spire

Powerful new number types and numeric abstractions for Scala.

finagle/finch

Scala combinator library for building Finagle HTTP services

fthomas/refined

Simple refinement types for Scala

julien-truffaut/monocle

Optics library for Scala

pureconfig/pureconfig

A boilerplate-free library for loading configuration files

typelevel/cats-effect

The purely functional runtime system for Scala

fthomas/scala-steward

:robot: A bot that helps you keeping your Scala projects up-to-date

typelevel/kittens

Automatic type class derivation for Cats

notxcain/aecor

Pure functional event sourcing runtime

vlovgr/ciris

Functional Configurations for Scala

raster-foundry/raster-foundry

The Raster Foundry web application.

fd4s/fs2-kafka

Functional Kafka Streams for Scala

typelevel/paiges

an implementation of Wadler's a prettier printer

ovotech/fs2-kafka

Functional Kafka Streams for Scala

travisbrown/catbird

Birds and cats together

cb372/cats-retry

augustjune/canoe

Functional Telegram Bot API for Scala